Google notes that this version brings the final system behaviors, final APIs as well as the latest patches that will be launch alongside the stable version of Android O. The tech giant had already updated its timeline with a Q3 release date and not so long ago, we got a report suggesting that the OS could be rolled out before mid-August. After this release, the next move for Google is to officially launch the still-unnamed Android O to supported devices.
"As we put the finishing touches on the Android O platform, today we're rolling out Developer Preview 4 to help you make sure your apps are ready", Google VP of Engineering Dave Burke writes.
Google is also saying this latest preview is a release candidate, meaning any changes between now and the final release are likely to be minimal. Take this opportunity to wrap up your testing and publish your updates soon, to give users a smooth transition to Android O.
We're also introducing a new version of Android Testing Support Library that includes new features like Android Test Orchestrator, Multiprocess Espresso, and more.
If you're not a developer, you can always install the final preview using the Android Beta program. If you don't feel like waiting, you can download your device's system image here and manually flash the update. This includes the Nexus 5X, Nexus 6P, Nexus Player, Pixel C, Pixel and then the Pixel XL. the company has also made emulator images made available to developers for handsets, Android Wear and Android TV. Be warned however that going this route means you won't receive an OTA update to the final build of O, unless you enroll your device in the Beta program. Last year's V20 was the first to feature Android Nougat out of the box, so it'll be interesting to see whether LG is able to repeat the feat.